Harper and Company



		WATER CHEMISTRY CONTROLLERS
		Strantrol Environmental Control System Provides indoor aquatic facilities crystal clear pool water and excellent air quality at all times. No more superchlorinating or foul chlorine smell.
		# Strantrol-ECS	Environmental Control System
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		Strantrol Chlorine and pH Controller 24 hour monitoringand control accuracy. Minimizes maintenance downtime. Cuts labor and training costs. Works with all common chemicals. Extends life of pool and equipment. Strantrol System3BF Controller Strantrol System4 Controller Strantrol System5F Controller Strantrol System6 Controller Strantrol System7 Aquatic Mechanical Room Controller
		Strantrol Assemblies & Components
		Flowcell A properly designed flowcell ensures the perfect sensor-water contact. Without it, the sensor is effectively blind. Our flowcell incorporates an automatic air purging chamber with a see-through inspection cover. A pressure gauge, sampling cock, isolating valves and a flow switch complete the installation. See diagram
		pH and HRR Sensors Both pH and HRR sensors contain a proprietary inorganic gel. Each sensor contains a high volume of this gel which guarantees an extremely long life. Our HRR (redox) sensor is specifically designed to complement our patented Strantrol HRR technology. It utilizes 99.999% pure platinum. Its unique liquid junction incorporates porous Teflon, to minimize clogging and prolong sensor life.
		# 7040002 # 7040004 # 7042003 # 7042002	pH Probe-10' cable pH Probe-16" cable ORP/HRR Probe-10' cable ORP/HRR Probe-16" cable
		Flow Switch The flow switch ensures that chemicals will always be fed into a flowing water stream, to eliminate bather contact dangers. Any no-flow alarm condition signals the controller to shut off all chemical feed circuits immediately. We use a paddle-wheel style flow switch with a see through cover and an "ON STREAM" indicator light.
		# 7030002 # 6533903 # 7820010 # 6091413 # 2961055 # 7820020	Flowswitch/Paddlewheel Flowswitch Pin Flowswitch-System 3,4,5 & 720 Flowswitch O-Rings Flowswitch Covers Flowswitch System 2
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		Water Level Controller Automatic monitor consists of PVC sensing chamber, stainless steel probes, relay panel with 24-hour timer, and solenoid valve. Unit is directly connected to pool wall to accurately measure water level and precisely controlled by a fill-cycle timer.
		# ADELC800	Electronic Water Level Controller
		# 2040	Water Level Controller
		# ADSP000	SP Water Level Controller

		Other Water Chemistry Systems: I Feed System I